Introduction and function of tourmaline

Tourmaline is a borosilicate mineral with the general chemical formula of nar3al6 [si6o18] [BO3] 3 (oh, f) 4 and English name tourmaline. Tourmaline is a kind of silicate mineral with ring structure of aluminum, iron, sodium, magnesium and lithium characterized by boron. Mohs hardness is 7-7.5, specific gravity is 2.98-3.20.

Tourmaline is a kind of silicate mineral with natural ring structure. It is produced in Brazil, China and other places. It has existed on the earth for hundreds of millions of years and is rich in minerals.

Application of tourmaline:

Because tourmaline has unique physical and chemical properties such as piezoelectric and thermoelectric properties, tourmaline has the functions of far-infrared electromagnetic radiation, producing negative oxygen ions, antibacterial and deodorizing functions. Therefore, in recent years, functional fiber, textile, clothing, coating materials, drinking water purification, building materials, daily necessities and composite materials are widely used.

The change of temperature and pressure can cause the electric potential difference of tourmaline crystal and ionize the surrounding air, that is to say, negative oxygen ions are produced in the air, so as to achieve the purpose of air purification. Adding tourmaline powder into polyester melt can make polyester fiber have far-infrared heat preservation function, deodorization function, negative ion emission function and antibacterial function, which is called "strange fiber".

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